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An indole alkaloid isolated from the fruits of RHAZYA STRICTA Dec., has been identified as tetrahydroalstonine on the basis of spectroscopic studies and by comparison with the authentic sample.
A new enzyme was discovered which specifically hydrogenates the iminium form of cathenamine at position 21 to yield the heteroyohimbine alkaloid tetrahydroalstonine. The enzyme was partially purified (35-fold) from Catharanthus roseus cell suspension cultures. It was shown to use exclusively NADPH
Methyl jasmonate is capable of initiating or improving the biosynthesis of secondary metabolites in plants and therefore has opened up a concept for the biosynthesis of valuable constituents. In this study, the effect of different doses of methyl jasmonate (MeJA) elicitation on the accumulation of